Rotaphone - D, a New Model of Six-Degree-of-Freedom Seismic Sensor: Description and Performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F25%3A00601022" target="_blank" >RIV/67985891:_____/25:00601022 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/25:10486125

Výsledek na webu

<a href="https://doi.org/10.1785/0220240258" target="_blank" >https://doi.org/10.1785/0220240258</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1785/0220240258" target="_blank" >10.1785/0220240258</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rotaphone - D, a New Model of Six-Degree-of-Freedom Seismic Sensor: Description and Performance

Popis výsledku v původním jazyce

A new model of the Rotaphone‐D short‐period seismic sensor with six degrees of freedom is introduced. The basis of the instrument is horizontal and vertical geophones in a special paired arrangement. The instrument is designed for simultaneous and collocated measurements of rotational and translational components of ground motion. The basic principle of measurement is briefly described. Careful calibration is necessary for this type of measurement, which has two parts: a preliminary calibration based on laboratory measurements of the characteristics of the individual geophones, and a subsequent in situ calibration, which takes into account the actual physical conditions during field measurements and is performed during the processing of the measured data. The effect of the calibration is demonstrated by specific laboratory tests. The laboratory tests have confirmed the correct functioning of the instrument. The frequency range of Rotaphone‐D is from 2 to 80 Hz and is therefore optimal for monitoring local seismicity. The instrument was subsequently used in field measurements during two several‐month measurement campaigns in California, United States. Examples of six‐component records from two sites—The Geysers and Long Valley Caldera—are presented and briefly interpreted from a seismological perspective. Basic instrument parameters are given. The instrument is lightweight, portable, easy to install, and offers several interesting applications, which are briefly discussed. Six‐component measurements (translational and rotational) have become a powerful tool, especially in volcanic seismology and in monitoring induced seismicity.n

Název v anglickém jazyce

Rotaphone - D, a New Model of Six-Degree-of-Freedom Seismic Sensor: Description and Performance

Popis výsledku anglicky

A new model of the Rotaphone‐D short‐period seismic sensor with six degrees of freedom is introduced. The basis of the instrument is horizontal and vertical geophones in a special paired arrangement. The instrument is designed for simultaneous and collocated measurements of rotational and translational components of ground motion. The basic principle of measurement is briefly described. Careful calibration is necessary for this type of measurement, which has two parts: a preliminary calibration based on laboratory measurements of the characteristics of the individual geophones, and a subsequent in situ calibration, which takes into account the actual physical conditions during field measurements and is performed during the processing of the measured data. The effect of the calibration is demonstrated by specific laboratory tests. The laboratory tests have confirmed the correct functioning of the instrument. The frequency range of Rotaphone‐D is from 2 to 80 Hz and is therefore optimal for monitoring local seismicity. The instrument was subsequently used in field measurements during two several‐month measurement campaigns in California, United States. Examples of six‐component records from two sites—The Geysers and Long Valley Caldera—are presented and briefly interpreted from a seismological perspective. Basic instrument parameters are given. The instrument is lightweight, portable, easy to install, and offers several interesting applications, which are briefly discussed. Six‐component measurements (translational and rotational) have become a powerful tool, especially in volcanic seismology and in monitoring induced seismicity.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/EH22_008%2F0004605" target="_blank" >EH22_008/0004605: Přírodní a antropogenní georizika</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Seismological Research Letters

ISSN

0895-0695

e-ISSN

1938-2057

Svazek periodika

96

Číslo periodika v rámci svazku

2A

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

968-979

Kód UT WoS článku

001446049800003

EID výsledku v databázi Scopus

2-s2.0-86000658925